JPH08214505A - Electric motor with structural element responsive to temperature - Google Patents
Electric motor with structural element responsive to temperatureInfo
- Publication number
- JPH08214505A JPH08214505A JP7279321A JP27932195A JPH08214505A JP H08214505 A JPH08214505 A JP H08214505A JP 7279321 A JP7279321 A JP 7279321A JP 27932195 A JP27932195 A JP 27932195A JP H08214505 A JPH08214505 A JP H08214505A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- structural element
- electric motor
- stator
- insulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
(57)【要約】
【課題】 過熱による損傷を回避でき、安価に作製可能
な電動機を提供することにある。
【解決手段】 電動機の固定子の前面を絶縁するため
に、カラー（８）と接続端子（６，７）とを具える環状
の基体（５）から成る絶縁体（３）を使用する。固定子
コイル（２）の温度を検出するために、少なくとも一つ
のカラー（８）の領域における基体（５）に、固定子コ
イル（２）で巻き上げた温度に応答する構造素子（９）
を配置し、該構造素子は接続端子（６，７）と結合す
る。
(57) Abstract: To provide an electric motor which can avoid damage due to overheating and can be manufactured at low cost. An insulator (3) consisting of an annular base (5) comprising a collar (8) and connection terminals (6, 7) is used to insulate the front surface of the stator of an electric motor. Structural element (9) responsive to the temperature wound by the stator coil (2) on the substrate (5) in the region of at least one collar (8) for detecting the temperature of the stator coil (2)
And the structural element is connected to the connection terminals (6, 7).
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、磁極を有する固定
子と、固定子コイルと、固定子のそれぞれの端面を絶縁
するための絶縁体とを具える電動機、特に、絶縁体がほ
ぼ環状に形成した基体を有し、磁極の領域では前記基体
からカラーが軸線方向に突出するとともに、基体には接
続端子を配置した電動機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor provided with a stator having magnetic poles, a stator coil, and an insulator for insulating each end face of the stator, and more particularly, the insulator has a substantially annular shape. The present invention relates to an electric motor having a formed base body, a collar protruding axially from the base body in the region of the magnetic pole, and a connection terminal arranged on the base body.
【０００２】[0002]
【従来の技術】ドイツ連邦共和国特許出願公開第 30 37
615号公報には、 電動機の固定子コイルを係止する方法
が開示されている。 この電動機では、磁極を具える薄板
群から構成した固定子の端面が、それぞれ絶縁体で覆わ
れ、該絶縁体の基体から径方向のほぼ対向する位置に配
置したカラーが突出している。固定子にコイルを巻く際
に、カラーは前面領域に生じる固定子コイルの巻線の頭
部を固定するように作用する。その際、固定子コイルは
カラーによって規定された中空スペースを通過する。絶
縁体は、主として環状に形成した基体から構成され、該
基体は２個の突出するカラーの他に接続端子を有してい
る。電動機は作動中に昇温する。その際、許容温度を超
えると、コイルの絶縁性が損なわれるおそれがある。[Prior Art] German Patent Publication No. 30 37
Japanese Patent No. 615 discloses a method of locking a stator coil of an electric motor. In this electric motor, an end surface of a stator composed of a thin plate group having magnetic poles is covered with an insulator, respectively, and a collar disposed at a position substantially opposite to the radial direction protrudes from a base of the insulator. When winding the coil around the stator, the collar acts to secure the winding head of the stator coil that occurs in the front area. The stator coil then passes through the hollow space defined by the collar. The insulator is mainly composed of a base formed in an annular shape, and the base has connection terminals in addition to the two protruding collars. The motor heats up during operation. At that time, if the allowable temperature is exceeded, the insulation of the coil may be impaired.
【０００３】[0003]
【発明が解決しようとする課題】コイル絶縁の損傷を防
ぐために、例えば、ドイツ連邦共和国特許出願公開第 3
921 689 号公報に開示された電動機においては、 温度に
応答する構造素子が固定子コイル内に収容されてる。 こ
の構造素子は、電動機の温度上昇に応答して駆動電流の
供給を制限している。そして、許容される固定子コイル
温度まで低下すると、温度に応答する構造素子は直ちに
駆動電流の供給の制限を解除してる。この温度に応答す
る構造素子を固定子コイルを巻装する間に固定子コイル
内に配置することは非常に時間を要する。したがって、
電動機を安価に製造することができなくなってしまう。In order to prevent damage to the coil insulation, for example, German Patent Application Publication No. 3
In the electric motor disclosed in Japanese Patent No. 921 689, structural elements responsive to temperature are housed in a stator coil. This structural element limits the supply of drive current in response to an increase in motor temperature. Then, when the temperature of the stator coil is allowed to drop, the structural element responding to the temperature immediately releases the restriction of the supply of the drive current. Placing structural elements that are responsive to this temperature within the stator coil during winding of the stator coil is very time consuming. Therefore,
The electric motor cannot be manufactured at low cost.
【０００４】[0004]
【課題を解決するための手段並びに作用】本発明の目的
は、過熱による損傷を回避でき、安価に作製可能な電動
機を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an electric motor which can avoid damage due to overheating and can be manufactured at low cost.
【０００５】この課題を解決するため、本発明による電
動機は、 カラーの領域では温度に応答する構造素子を絶
縁体に配置し、 この構造素子を接続端子に接続したこと
を特徴とするものである。In order to solve this problem, the electric motor according to the present invention is characterized in that in the color region, a temperature-responsive structural element is arranged in an insulator and this structural element is connected to a connection terminal. .
【０００６】本発明においては、温度に応答する構造素
子を少なくとも１個の絶縁体に配置するため、温度に応
答する構造素子を電動機の固定子に迅速かつ安価に取り
付けることが確実に可能となる。温度に応答する構造素
子は、固定子に絶縁体を装着した後、固定子コイルを巻
装することに固定される。これにより、温度に応答する
構造素子が固定子コイルと直接接触するため、固定子コ
イルからの熱伝達が一層良好になる。固定子コイルの導
線を、例えば、ラッカーとする絶縁層によって被覆する
場合、温度に応答する構造素子は間接的に固定子コイル
に固定される。したがって、温度に応答する構造素子と
固定子コイルとの間には、極めて良好な熱伝導が確保さ
れる。According to the invention, the temperature-sensitive structural element is arranged on at least one insulator, so that it is possible to ensure that the temperature-sensitive structural element is fast and cheaply mounted on the stator of the motor. . The temperature responsive structural element is fixed by winding the stator coil after mounting the insulator on the stator. This results in better heat transfer from the stator coil as the temperature responsive structural element is in direct contact with the stator coil. If the conductors of the stator coil are covered by an insulating layer, for example a lacquer, the temperature-responsive structural element is indirectly fixed to the stator coil. Therefore, very good heat conduction is ensured between the temperature-responsive structural element and the stator coil.
【０００７】温度に応答する構造素子は、カラーに向け
て開放した基体の凹所に配置することが有利である。こ
の凹所に配置することにより、温度に応答する構造素子
を絶縁体の基体に安全かつ移動することなく配置するこ
とが確実となる。The temperature-sensitive structural element is advantageously arranged in a recess in the base body which is open towards the collar. The placement in this recess ensures that the temperature-responsive structural element is placed safely and without movement on the base body of the insulator.
【０００８】製造技術上の理由から、温度に応答する構
造素子は基体に堅固に結合することが有利である。その
際、温度に応答する構造素子は基体に接着し又は基体に
装着するか、あるいは固定素子を用いて基体に結合す
る。For manufacturing engineering reasons, it is advantageous for the temperature-sensitive structural element to be firmly bonded to the substrate. The temperature-sensitive structural element is then glued to or attached to the substrate or is bonded to the substrate by means of fixing elements.
【０００９】温度に応答する構造素子を接続端子に接続
するために電線を具えることが有利であり、該電線は基
体の受容チャンネル内に配置する。基体に配置した温度
に応答する構造素子は二本の電線を有し、該電線を通じ
て電流供給の制限に対応する切換信号を供給する。絶縁
体を構成する基体は接続端子を有し、この絶縁体を取り
付ける前に、温度に応答する構造素子の電線を前記接続
端子に接続する。したがって、温度に応答する構造素子
と絶縁体とは、一体化して固定子の前面に装着可能な取
り付けユニットを形成する。Advantageously, an electric wire is provided for connecting the temperature-sensitive structural element to the connection terminal, which electric wire is arranged in the receiving channel of the basic body. The temperature-responsive structural element arranged on the substrate has two electric wires through which a switching signal corresponding to the limitation of the current supply is supplied. The base body forming the insulator has a connecting terminal, and the electric wire of the temperature-responsive structural element is connected to the connecting terminal before the insulator is attached. Thus, the temperature responsive structural element and the insulator together form a mounting unit mountable on the front surface of the stator.
【００１０】温度に応答する構造素子から接続端子に通
ずる電線が固定子コイルと直に接触することを防ぐため
に、電線を受容チャンネル内に敷設する。In order to prevent direct contact of the electric wire from the temperature-sensitive structural element to the connecting terminal with the stator coil, the electric wire is laid in the receiving channel.
【００１１】温度に応答する構造素子は間接的に加熱し
た冷却導体であることが有利である。温度が上昇し、一
定の温度を超過するや否や、冷導体の抵抗値は直ちに殆
ど飛躍的に上昇する。温度係数は非常に大きい正である
ため、冷導体はＰＴＣ抵抗とも称する。Advantageously, the temperature-sensitive structural element is an indirectly heated cooling conductor. As soon as the temperature rises and exceeds a certain temperature, the resistance value of the cold conductor rises almost immediately. Cold conductors are also referred to as PTC resistors because the temperature coefficient is very large and positive.
【００１２】[0012]
【発明の実施の形態】以下、 図示実施例につき本発明を
一層具体的に説明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described more specifically with reference to the illustrated embodiments.
【００１３】図１に部分的に示した直巻電動機は、薄板
群から成る固定子１を有し、該固定子の前面４に絶縁体
３を装着する。絶縁体３と固定子１との間の結合は、棒
状に形成した結合素子14により行ない、 該結合素子は絶
縁体３を構成する基体５の第一の側17に位置するととも
に、 対応して形成した固定子１の受け孔15内に突入す
る。The series-wound electric motor partially shown in FIG. 1 has a stator 1 composed of a group of thin plates, and an insulator 3 is mounted on a front surface 4 of the stator. The coupling between the insulator 3 and the stator 1 is carried out by means of a rod-shaped coupling element 14, which is located on the first side 17 of the base body 5 constituting the insulator 3 and correspondingly It projects into the receiving hole 15 of the formed stator 1.
【００１４】絶縁体３は、ほぼ環状として形成した基体
５から構成され、固定子１から離れた側の第二の側18に
おいて、 径方向の対向する位置に形成した二つのカラー
８が前記基体から突出する。側18には凹所12を設け、 該
凹所は温度に応答する構造素子９を収容するために供す
る。凹所12からは、 開放して形成した受容チャンネル13
が接続端子６，７に向けて延在する。温度に応答する構
造素子は、受容チャンネル13に案内される電線10, 11に
接続する。 凹所12は、 基体５のカラー８の下側の領域に
形成され、前記基体に固定子コイル２を巻装する。受容
チャンネル13に配置した電線10, 11が基体５の表面を通
過して受容チャンネル13の領域から突出しないように、
受容チャンネル13の深さを規定する。したがって、電線
10, 11が固定子コイル２と接触することが回避される。
図示していない固定子コイル２のコイル端は、例えば、
同様に図示していない基体５に配置した別の接続端子に
固定することができる。The insulator 3 is composed of a base body 5 formed in a substantially annular shape, and two collars 8 formed at radially opposite positions on the second side 18 away from the stator 1 are the base bodies. Stick out from. The side 18 is provided with a recess 12, which serves to accommodate the temperature-sensitive structural element 9. From the recess 12, an open and formed receiving channel 13
Extend toward the connection terminals 6 and 7. The temperature-responsive structural element connects to the wires 10, 11 which are guided in the receiving channel 13. The recess 12 is formed in a region of the base 5 below the collar 8 and the stator coil 2 is wound around the base. In order to prevent the electric wires 10, 11 arranged in the receiving channel 13 from passing through the surface of the substrate 5 and protruding from the area of the receiving channel 13,
It defines the depth of the receiving channel 13. Therefore, the wire
It is avoided that 10, 10 contact with the stator coil 2.
The coil end of the stator coil 2 not shown is, for example,
Similarly, it can be fixed to another connection terminal arranged on the substrate 5 (not shown).
【００１５】基体５は貫通開口16を有し、 該貫通開口は
互いに径方向の対向する位置に形成されると共に、 カラ
ー８に対して９０°だけ変位して形成する。The base body 5 has a through-opening 16, which is formed at a position opposed to each other in the radial direction and is displaced by 90 ° with respect to the collar 8.
【図１】本発明の一実施例による固定子と固定子コイル
とを結合した絶縁体を有する電動機の一部を示す平面図
である。FIG. 1 is a plan view showing a part of an electric motor having an insulator in which a stator and a stator coil are combined according to an embodiment of the present invention.
【図２】図１に示した電動機を方向IIから見て示す側面
図である。2 is a side view showing the electric motor shown in FIG. 1 as viewed from a direction II. FIG.
１ 固定子 ２ 固定子コイル ３ 絶縁体 ４ 前面 ５ 基体 ６，７ 接続端子 ８ カラー ９ 構造素子 10, 11 電線 12 凹所 13 受容チャンネル 1 Stator 2 Stator coil 3 Insulator 4 Front face 5 Base 6,7 Connection terminal 8 Color 9 Structural element 10, 11 Electric wire 12 Recess 13 Receiving channel
Claims (5)
イル（２）と、固定子（１）の端面（４）を絶縁するた
めの絶縁体（３）とを具える電動機であって、前記絶縁
体（３）はほぼ環状として形成した基体（５）を有し、
磁極領域において前記基体からカラー（８）が軸線方向
に突出するとともに、基体（５）には接続端子（６，
７）を配置した電動機において、温度に応答する構造素
子（９）を前記絶縁体（３）のカラー（８）の領域に配
置し、該構造素子を前記接続端子（６，７）に接続した
ことを特徴とする電動機。1. An electric motor comprising a stator (1) having magnetic poles, a stator coil (2), and an insulator (3) for insulating an end surface (4) of the stator (1). The insulator (3) has a substrate (5) formed in a substantially annular shape,
In the magnetic pole region, the collar (8) projects from the base body in the axial direction, and the base body (5) has connection terminals (6, 6).
In the electric motor in which 7) is arranged, the temperature-responsive structural element (9) is arranged in the region of the collar (8) of the insulator (3), and the structural element is connected to the connection terminals (6, 7). An electric motor characterized in that
度に応答する構造素子（９）はカラー（８）に向けて開
放した基体（５）の凹所（12）に配置したことを特徴と
する電動機。2. Motor according to claim 1, characterized in that the temperature-sensitive structural element (9) is arranged in a recess (12) in the base (5) open towards the collar (8). Electric motor to do.
て、前記温度に応答する構造素子（９）を基体（５）に
堅く結合したことを特徴とする電動機。3. Motor according to claim 1 or 2, characterized in that the structural element (9) responsive to the temperature is rigidly connected to the base body (5).
動機において、前記温度に応答する構造素子（９）を接
続端子（６，７）と結合するために、前記基体（５）の
受容チャンネル（13）内に配置した電線を具えたことを
特徴とする電動機。4. The electric motor according to claim 1, wherein the base body (5) is provided for coupling the temperature-responsive structural element (9) with a connection terminal (6, 7). An electric motor, characterized in that it comprises an electric wire arranged in the receiving channel (13).
動機において、前記温度に応答する構造素子（９）を間
接的に加熱される冷却導体としたことを特徴とする電動
機。5. The electric motor according to claim 1, wherein the structural element (9) responsive to the temperature is a cooling conductor that is indirectly heated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4438242A DE4438242A1 (en) | 1994-10-26 | 1994-10-26 | Electric motor with temperature-dependent component |
| DE4438242:1 | 1994-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08214505A true JPH08214505A (en) | 1996-08-20 |
Family
ID=6531741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7279321A Pending JPH08214505A (en) | 1994-10-26 | 1995-10-26 | Electric motor with structural element responsive to temperature |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0709945B1 (en) |
| JP (1) | JPH08214505A (en) |
| KR (1) | KR100318615B1 (en) |
| DE (2) | DE4438242A1 (en) |
| ES (1) | ES2132578T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7815368B2 (en) | 2005-03-23 | 2010-10-19 | Toyota Jidosha Kabushiki Kaisha | Temperature detector and fixing material transfer suppressing structure |
| WO2011117985A1 (en) | 2010-03-24 | 2011-09-29 | トヨタ自動車株式会社 | Instrument for adjoining temperature detecting element |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19859011C1 (en) * | 1998-12-21 | 2000-09-21 | Metabowerke Kg | Electric motor with temperature protection for stator winding has metallic sleeve receiving temperature protection element in its open end for providing thermal contact with stator winding |
| DE19925699C1 (en) * | 1999-06-04 | 2000-11-02 | Interelectric Ag Sachseln | Electric motor or generator has bifilar temperature sensor used for monitoring temperature or temperature variation of rotor or stator winding packet |
| DE102013003052A1 (en) * | 2013-02-20 | 2014-09-04 | Ziehl-Abegg Se | Component for stator of electric motor, has temperature delimiter that is located in heat-conducting contact with outer side of end windings of winding |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028570A (en) * | 1975-06-18 | 1977-06-07 | Emerson Electric Co. | Self locking molded thermostat strap |
| DE3021689A1 (en) | 1980-06-10 | 1981-12-17 | Metabowerke GmbH & Co, 7440 Nürtingen | OVERLOAD PROTECTION FOR THE ENGINE, ESPECIALLY AN ELECTRIC HAND TOOL |
| DE3037615C2 (en) | 1980-10-04 | 1983-12-01 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for defining the end windings of the field coils of electrical machines with pronounced poles |
| IT223866Z2 (en) * | 1990-01-18 | 1995-10-03 | CARTRIDGE FOR COILS OF AC MOTORS WITH ALTERNATING CURRENT, EQUIPPED WITH A POCKET FOR THE SUPPORT AND STOP OF THE THERMAL CIRCUIT BREAKER. |
-
1994
- 1994-10-26 DE DE4438242A patent/DE4438242A1/en not_active Withdrawn
-
1995
- 1995-07-12 DE DE59505894T patent/DE59505894D1/en not_active Expired - Lifetime
- 1995-07-12 ES ES95810460T patent/ES2132578T3/en not_active Expired - Lifetime
- 1995-07-12 EP EP95810460A patent/EP0709945B1/en not_active Expired - Lifetime
- 1995-09-05 KR KR1019950028906A patent/KR100318615B1/en not_active Expired - Lifetime
- 1995-10-26 JP JP7279321A patent/JPH08214505A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7815368B2 (en) | 2005-03-23 | 2010-10-19 | Toyota Jidosha Kabushiki Kaisha | Temperature detector and fixing material transfer suppressing structure |
| WO2011117985A1 (en) | 2010-03-24 | 2011-09-29 | トヨタ自動車株式会社 | Instrument for adjoining temperature detecting element |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4438242A1 (en) | 1996-05-02 |
| EP0709945B1 (en) | 1999-05-12 |
| ES2132578T3 (en) | 1999-08-16 |
| EP0709945A1 (en) | 1996-05-01 |
| DE59505894D1 (en) | 1999-06-17 |
| KR100318615B1 (en) | 2002-04-22 |
| KR960016069A (en) | 1996-05-22 |
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